LESSON 4
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
C
MSL
The datum universally...(page 4-1, Introduction)
2.
C
Benchmarks
Benchmarks are permanent...(page 4-2, para 4-2)
3.
A
Are run in one direction only
The criteria for Class II...(page 4-4, para 4-3b[2])
4.
A
0.001 of a unit
A graduated tilting screw...(page 4-5, para 4-5a)
5.
D
Read the bottom wire first
Read the bottom hair...(page 4-9, para 4-5b)
6.
C
Obtain the length of the sections being observed
It is the factor by which...(page 4-10, para 4-8a)
7.
D
0.002 from the mean
If any of the six individual...(page 4-12, para 4-8a[2])
8.
B
Spacing of the crosshairs
The constant depends upon...(page 4-12, para 4-8a[3])
9.
C
10 millimeters
If the deviation from...(page 4-15, para 4-8c)
10.
B
0.003 meter
Any time that the...(page 4-16, para 4-9a, third bullet)
11.
B
75 meters
The maximum length...(page 4-18, para 4-9a[6])
12.
D
Imperfect level adjustment
Errors due to imperfect level...(page 4-18, para 4-9a[7])
EN0593
4-38
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